function [version,versiontext] = crversion()
%
% function [version,versiontext] = crversion()
%
% CREWES Matlab toolbox zip or tgz files from the website contain
% a file called svninfo.txt. crversion returns the svn version number
% from svninfo.txt if it exists, or [] if it does not
%
% NOTE: This SOFTWARE may be used by any individual or corporation for any purpose
% with the exception of re-selling or re-distributing the SOFTWARE.
% By using this software, you are agreeing to the terms detailed in this software's
% Matlab source file.

% BEGIN TERMS OF USE LICENSE
%
% This SOFTWARE is maintained by the CREWES Project at the Department
% of Geology and Geophysics of the University of Calgary, Calgary,
% Alberta, Canada.  The copyright and ownership is jointly held by
% its 'AUTHOR' (identified above) and the CREWES Project.  The CREWES
% project may be contacted via email at:  crewesinfo@crewes.org
%
% The term 'SOFTWARE' refers to the Matlab source code, translations to
% any other computer language, or object code
%
% Terms of use of this SOFTWARE
%
% 1) This SOFTWARE may be used by any individual or corporation for any purpose
%    with the exception of re-selling or re-distributing the SOFTWARE.
%
% 2) The AUTHOR and CREWES must be acknowledged in any resulting publications or
%    presentations
%
% 3) This SOFTWARE is provided "as is" with no warranty of any kind
%    either expressed or implied. CREWES makes no warranties or representation
%    as to its accuracy, completeness, or fitness for any purpose. CREWES
%    is under no obligation to provide support of any kind for this SOFTWARE.
%
% 4) CREWES periodically adds, changes, improves or updates this SOFTWARE without
%    notice. New versions will be made available at www.crewes.org .
%
% 5) Use this SOFTWARE at your own risk.
%
% END TERMS OF USE LICENSE

%

version     = []; %assume failure
versiontext = ''; %assume failure
SVNINFO = which('crversion.txt');

if isempty(SVNINFO)
   %disp('CREWES toolbox version number was not found');
else
    try
        fid   = fopen(SVNINFO);
        tline = fgetl(fid);
        versiontext = tline;
        version = str2double(tline(strfind(tline,':')+2:end));
        if isnan(version) version =0.0; end
            
        fclose(fid);       
    catch ex
        disp(ex.message);
    end
end